Abstract: A handle (10) attached to a printed circuit board (7) for manually inserting and removing the board into and from a rack has a pivotable lever (13,14) at each end of an elongate member (11); to disengage a multi-pin plug and socket connector (8,9) when it is desired to remove the board from the rack, the levers (13,14) are rotated to engage cross-bar members (1,2) of the rack, exerting moments on the handle (10) tending to withdraw the board from the rack. To inhibit rattling of the levers (13,14), when the rack is subjected to vibration, and other undesired rotation of the levers, recesses (25,26) are provided in the elongate member (11) respectively adjacent the levers, the recesses receiving respective resiliently deformable elements (27,28), such as cylinders of neoprene rubber, which co-operate with the levers to urge them towards their inoperative positions.

Abstract: An assembly for supporting a body having approximately a predetermined dimension, particularly a printed circuit board (1), comprises a frame (4, 11-14), at least one support member (9), and further support means, suitably another support member (10). An edge (5) of the body (1) is received in a groove (7) extending along and into the support member (9). The body (1) and frame (4, 11-14)comprise co-operating locating means such as a plug (2) and socket (3) which locate one end of the body (1).